Patents by Inventor Sung Ho Beck
Sung Ho Beck has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8208883Abstract: The present invention provides a receiver with low power consumption. The receiver with low power consumption adjusts the gain of the programmable gain amplifier based on the automatic gain controller and further optimizes the gain bandwidth product by current-adjusting unit. The current-adjusting unit thus adjusts the current provided for the programmable gain amplifier, e.g. operational amplifier. Therefore, the gain bandwidth product of the programmable gain amplifier is optimized and the power consumption of the receiver is effectively decreased.Type: GrantFiled: February 12, 2009Date of Patent: June 26, 2012Assignee: Silicon Motion, Inc.Inventors: Seong-heon Jeong, Sung-ho Beck, Myung-woon Hwang
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Patent number: 8000756Abstract: The present invention provides a receiver having low power consumption and method thereof. The receiver with low power consumption adjusts the gain based on the automatic gain control information. The receiver acquires the signal peaks both after and before a channel selection filter and further analyzes the wanted signal and interference signal with respect to the signal peaks. The receiver determines the magnitude of the wanted signal and determines whether the interference signal exists. The receiver provides the signals with optimal current correspondingly in order to effectively decrease the power consumption of the receiver.Type: GrantFiled: February 12, 2009Date of Patent: August 16, 2011Assignee: Silicon Motion, Inc.Inventors: Sung-ho Beck, Sung-hyuk Lee, Myung-woon Hwang
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Patent number: 7876154Abstract: A variable gain amplifier (VGA) with a linear-in-dB gain characteristic is provided. The VGA includes: a control signal converter which converts an input gain control signal VC, which is input so that the VGA obtains a linear-in-dB gain characteristic to the maximum gain, into an output gain control signal Vx=VTln((1/m)exp(?VC/VT)?1) (m is a constant, VT=kT/q); and a variable gain amplifier which receives and converts the output gain control signal VX output from the control signal converter so that the gain has a linear-in-dB characteristic. A shape of a gain curve is externally controlled.Type: GrantFiled: June 14, 2007Date of Patent: January 25, 2011Assignee: FCI Inc.Inventor: Sung Ho Beck
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Publication number: 20100308789Abstract: A band gap reference voltage generator with low working voltage is disclosed. The band gap reference voltage generator can stably operates that the unexpected balance status does not occur due to the manufacturing process inaccuracy or the offset voltage. The band gap reference voltage generator comprises a thermal voltage generation circuit, a voltage level optimizing circuit and a band gap reference voltage generating circuit. The thermal voltage generating circuit provides a first voltage and a second voltage. The first voltage is for generating a current component increased with temperature rising. The second voltage is for generating a current component decreased with temperature rising. The voltage level optimizing circuit optimizes the voltage level of the second voltage to generate a third voltage. The band gap reference voltage generating circuit generates the reference voltage with a specific voltage level corresponding to the first voltage and the third voltage irrelevant with the temperature.Type: ApplicationFiled: June 8, 2009Publication date: December 9, 2010Applicant: Silicon Motion, Inc.Inventors: Sung-ho Beck, Seong-heon Jeong
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Patent number: 7746151Abstract: The mixer includes mixers constructed with variable gain amplifiers having two transistor pairs Qp+/Qp? and Qn+/Qn? to have a predetermined gain by using LO+ and LO? signals; and LO bias circuits connected to have bias voltages different from each other with respect to the LO+ and LO? signals of the mixers and share an input signal.Type: GrantFiled: June 30, 2006Date of Patent: June 29, 2010Assignee: FCI Inc.Inventor: Sung Ho Beck
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Publication number: 20090302946Abstract: A variable gain amplifier (VGA) with a linear-in-dB gain characteristic is provided. The VGA includes: a control signal converter which converts an input gain control signal VC, which is input so that the VGA obtains a linear-in-dB gain characteristic to the maximum gain, into an output gain control signal Vx=VTln((1/m)exp(?VC/VT)?1) (m is a constant, VT=kT/q); and a variable gain amplifier which receives and converts the output gain control signal VX output from the control signal converter so that the gain has a linear-in-dB characteristic. A shape of a gain curve is externally controlled.Type: ApplicationFiled: June 14, 2007Publication date: December 10, 2009Applicant: FCI INC.Inventor: Sung Ho Beck
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Publication number: 20090209221Abstract: The present invention provides a receiver with low power consumption. The receiver with low power consumption adjusts the gain of the programmable gain amplifier based on the automatic gain controller and further optimizes the gain bandwidth product by current-adjusting unit. The current-adjusting unit thus adjusts the current provided for the programmable gain amplifier, e.g. operational amplifier. Therefore, the gain bandwidth product of the programmable gain amplifier is optimized and the power consumption of the receiver is effectively decreased.Type: ApplicationFiled: February 12, 2009Publication date: August 20, 2009Applicant: SILICON MOTION, INC.Inventors: Seong-heon Jeong, Sung-ho Beck, Myung-woon Hwang
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Publication number: 20090209220Abstract: The present invention provides a receiver having low power consumption and method thereof. The receiver with low power consumption adjusts the gain based on the automatic gain control information. The receiver acquires the signal peaks both after and before a channel selection filter and further analyzes the wanted signal and interference signal with respect to the signal peaks. The receiver determines the magnitude of the wanted signal and determines whether the interference signal exists. The receiver provides the signals with optimal current correspondingly in order to effectively decrease the power consumption of the receiver.Type: ApplicationFiled: February 12, 2009Publication date: August 20, 2009Applicant: SILICON MOTION, INC.Inventors: Sung-ho Beck, Sung-hyuk Lee, Myung-woon Hwang
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Patent number: 7521997Abstract: Provided is a low-power variable gain amplifier having a direct-current (DC) bias stabilizer.Type: GrantFiled: November 12, 2007Date of Patent: April 21, 2009Assignee: FCI Inc.Inventors: Sung Ho Beck, Myung Woon Hwang
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Publication number: 20080315953Abstract: There is provided a variable gain mixer capable of controlling a gain at a low source voltage in a wide range without additional current consumption. The mixer includes: mixers constructed with variable gain amplifiers having two transistor pairs Qp+/Qp? and Qn+/Qn? to have a predetermined gain by using LO+ and LO? signals; and LO bias circuits connected to have bias voltages different from each other with respect to the LO+ and LO? signals of the mixers and share an input signal. Accordingly, by integrating the variable gain amplifiers into the mixers, a gain change can be obtained at a low source voltage in a wide range without connecting a number of variable gain amplifiers.Type: ApplicationFiled: June 30, 2006Publication date: December 25, 2008Applicant: FCI INC.Inventor: Sung Ho Beck
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Publication number: 20080122540Abstract: Provided is a low-power variable gain amplifier having a direct-current (DC) bias stabilizer.Type: ApplicationFiled: November 12, 2007Publication date: May 29, 2008Applicant: FCI INC.Inventors: Sung Ho BECK, Myung Woon HWANG